[PATCH] crypto: sun4i-ss: use crypto_ahash_digestsize

From: Corentin Labbe
Date: Thu Nov 14 2019 - 05:58:21 EST


The size of the digest is different between MD5 and SHA1 so instead of
using the higher value (5 words), let's use crypto_ahash_digestsize().

Signed-off-by: Corentin Labbe <clabbe.montjoie@xxxxxxxxx>
---
drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
index ee518dcdba42..ec5d9ce24bb8 100644
--- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
@@ -227,7 +227,7 @@ static int sun4i_hash(struct ahash_request *areq)
*/
if (op->byte_count) {
ivmode = SS_IV_ARBITRARY;
- for (i = 0; i < 5; i++)
+ for (i = 0; i < crypto_ahash_digestsize(tfm) / 4; i++)
writel(op->hash[i], ss->base + SS_IV0 + i * 4);
}
/* Enable the device */
--
2.23.0